[INFO] cloning repository https://github.com/garyemerson/file_buffer_size_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/garyemerson/file_buffer_size_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaryemerson%2Ffile_buffer_size_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaryemerson%2Ffile_buffer_size_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 004374d4a28014ed25bfcff5ca7890c8b10f020b
[INFO] checking garyemerson/file_buffer_size_test against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaryemerson%2Ffile_buffer_size_test" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/garyemerson/file_buffer_size_test
[INFO] finished tweaking git repo https://github.com/garyemerson/file_buffer_size_test
[INFO] tweaked toml for git repo https://github.com/garyemerson/file_buffer_size_test written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/garyemerson/file_buffer_size_test on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/garyemerson/file_buffer_size_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e71b9e944a36185b25f2d54ecbc2dcbac410f60b65fd07aafc2fda3bde29e70
[INFO] running `Command { std: "docker" "start" "-a" "8e71b9e944a36185b25f2d54ecbc2dcbac410f60b65fd07aafc2fda3bde29e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e71b9e944a36185b25f2d54ecbc2dcbac410f60b65fd07aafc2fda3bde29e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e71b9e944a36185b25f2d54ecbc2dcbac410f60b65fd07aafc2fda3bde29e70", kill_on_drop: false }`
[INFO] [stdout] 8e71b9e944a36185b25f2d54ecbc2dcbac410f60b65fd07aafc2fda3bde29e70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 856092cabbf1a0b43c21e22be805d4a299ea13c3fa2af6fcb3e91ffa8a8de7ca
[INFO] running `Command { std: "docker" "start" "-a" "856092cabbf1a0b43c21e22be805d4a299ea13c3fa2af6fcb3e91ffa8a8de7ca", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target" to rootfs at "/opt/rustwide/target": create mountpoint for /opt/rustwide/target mount: mkdirat /var/lib/docker/overlay2/15994d23c3c42e948639e4191b8b62eaeb3ef3fae9db6325f1ff5e69ad323b89/merged/opt/rustwide/target: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "856092cabbf1a0b43c21e22be805d4a299ea13c3fa2af6fcb3e91ffa8a8de7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856092cabbf1a0b43c21e22be805d4a299ea13c3fa2af6fcb3e91ffa8a8de7ca", kill_on_drop: false }`
[INFO] [stdout] 856092cabbf1a0b43c21e22be805d4a299ea13c3fa2af6fcb3e91ffa8a8de7ca